An Open Umbrella

It's often said that opening an umbrella indoors is bad luck. According to this superstition, which has roots in Egyptian legends as well as Norse traditions, when you bring in an item that protects your body from rain, you're insulting your home’s guardian spirits by implying that their protection doesn't cut it. Whether it's bad luck or not is up for debate, but it's still worth being careful with an umbrella in the house—you could poke an eye out with that thing!